“He gave the classic Republican agenda on economics: cut taxes. I think every Republican would agree,” he said.

Trump gave a preview of his economic plans during his Detroit speech, but also spent a large amount of the time attacking the policies of his rival, Democratic presidential nominee Hillary Clinton, and attempted to paint her as a candidate of the past.

Krauthammer said what stood out to him is how strongly Trump reiterated his anti-trade stances.

“He's to the left of [Clinton] on trade and that leaves us with an election where there's nobody to defend trade,” said Krauthammer. “This is new in modern American political history.”